QuFresh vs ERV
I’m at the stage in my build where I have to make final decisions on HVAC and other mechanicals. I’m building a 2 story (1200 down, 890 up), house as tight as I can afford/get my builder to execute. Goal is < 1.5ACH50. The builders HVAC guy has initially suggested Carrier Comfort, 2 ton, 2-stage systems…one for up and one for down….with a QuFresh instead of an ERV.
That seemed like a whole lot of unit to me, even with the two stage compressor. I’ve asked to at least use the Carrier Greenspeed Intelligence (true) variable speed units. Is that still too much? I”m about to ask to see Manual J calculations, but that also seems like being a bit of a jerk I suppose. Is it?
Also, thoughts on the QuFresh vs an ERV? HVAC guy said the QuFresh was more bang for your buck. How much of a difference in cost are we talking? $1k? Is it worth the ERV vs the QuFresh?
I feel like I have a good conceptual understanding of HVAC needs, but without “seeing the work” from the HVAC guy, I’m not sure if what I’m getting is sized right and ventilated properly. Last thing I want is oversized units.
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